A Sequence of Positive Integers is called an iteration sequence if there
Exists a strictly increasing sequence of Positive Integers such that
and
for , 3, .... A Necessary and Sufficient condition for
to be an iteration sequence is
References
Kimberling, C. ``Interspersions and Dispersions.'' Proc. Amer. Math. Soc. 117, 313-321, 1993.